Customer complaints

I was buying alcohol at shoprite in Brickhill Durban 14 Boscombe place, marine parade 4056. Belgravia gin bottle was R99. 00 and gave the guy at the till R200 note he registered that I gave him R100. We only realized this incident when we got to the apartment We then went back to report it. The camera lady saw the entire thing but because the guy (sbusiso) did cash up already when we got there they said they can't help us Worse part of this is the guy who took our money is the manager at the liquor store